21591b5219
- If the NewGRF sound effect chosen doesn't exist, then ignore it. - Play load/unload sound if provided.
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/* $Id$ */
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#include "stdafx.h"
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#include "openttd.h"
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#include "pool.h"
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#include "sound.h"
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#include "engine.h"
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#include "vehicle.h"
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#include "newgrf_callbacks.h"
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#include "newgrf_engine.h"
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#include "newgrf_sound.h"
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enum {
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SOUND_POOL_BLOCK_SIZE_BITS = 3, /* (1 << 3) == 8 items */
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SOUND_POOL_MAX_BLOCKS = 1000,
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};
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static uint _sound_count = 0;
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static MemoryPool _sound_pool = { "Sound", SOUND_POOL_MAX_BLOCKS, SOUND_POOL_BLOCK_SIZE_BITS, sizeof(FileEntry), NULL, NULL, 0, 0, NULL };
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/* Allocate a new FileEntry */
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FileEntry *AllocateFileEntry(void)
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{
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if (_sound_count == _sound_pool.total_items) {
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if (!AddBlockToPool(&_sound_pool)) return NULL;
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}
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return (FileEntry*)GetItemFromPool(&_sound_pool, _sound_count++);
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}
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void InitializeSoundPool(void)
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{
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CleanPool(&_sound_pool);
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_sound_count = 0;
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/* Copy original sound data to the pool */
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SndCopyToPool();
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}
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FileEntry *GetSound(uint index)
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{
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if (index >= _sound_count) return NULL;
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return (FileEntry*)GetItemFromPool(&_sound_pool, index);
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}
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uint GetNumSounds(void)
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{
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return _sound_count;
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}
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bool PlayVehicleSound(const Vehicle *v, VehicleSoundEvent event)
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{
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const GRFFile *file = GetEngineGRF(v->engine_type);
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uint16 callback;
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/* If the engine has no GRF ID associated it can't ever play any new sounds */
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if (file == NULL) return false;
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/* Check that the vehicle type uses the sound effect callback */
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if (!HASBIT(EngInfo(v->engine_type)->callbackmask, CBM_SOUND_EFFECT)) return false;
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callback = GetVehicleCallback(CBID_VEHICLE_SOUND_EFFECT, event, 0, v->engine_type, v);
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if (callback == CALLBACK_FAILED) return false;
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if (callback >= GetNumOriginalSounds()) callback += file->sound_offset - GetNumOriginalSounds();
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if (callback < GetNumSounds()) SndPlayVehicleFx(callback, v);
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return true;
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}
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